Specifications

Model

HT231-30

 

HT231-40

Engine Type

2-cycle, horizontal cylinder, air cooled

Engine Bore x Stroke

32 mm x 28 mm (1.26 in x 1.10 in.)

Engine Displacement

22.5cc (1.37 in3)

Unit Weight, Less Fuel

5.9 kg (13.0 lb)

 

6.4 kg (14.1 lb)

Unit Dimensions (LxWxH)

1080 x 250 x 240 mm (42.52 x 9.84 x 9.45 in)

 

1410 x 250 x 240 mm (55.51 x 9.84 x 9.45 in)

Fuel Tank Capacity

.53 liter (18.0

oz.)

Fuel/oil ratio

50:1 with *ISO-L-EGD or JASO FD class 2-cycle Mixing Oil

Carburetor

Diaphragm type

Ignition

Fully electronic, transistor controlled

Spark Plug

NGK BPMR6A

Electrode Gap

.6 mm (.024 in)

Torque

150-170 kgf • cm / 130-150 in • lbf

Air Cleaner

Foam element

Muffler Type

Spark arrestor muffler or spark arrestor muffler with catalyst

Starting Method

Recoil type

Stopping Method

Slide switch,grounding type

Blade Length

740 mm (29.13 in)

 

1060 mm (41.73 in)

Blade Type

Double-blade cutting action:

single-edged blade

Clutch Type

Centrifugal clutch, dry-type

Gear Type

Spur gears

Gear Lubrication

Lithium-based grease

Standard Equipment

Rear handle w/integral controls, anti-vibe mountings, front handle w/guard, tool set, blade cover.

 

 

 

 

Idle Speed (RPM)

3,000

 

 

Clutch Engagement Speed (RPM)

4,100

 

 

Wide Open Throttle (RPM)

11,000

 

Specifications are subject to change without notice.

IMPORTANT

This spark ignition system complies with the Canadian standard ICES-002.

Emission Control (exhaust & evaporative)

EPA 2010 and Later and/or C.A.R.B. TIER III

The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only.

Emission Control Label (located on Engine) (EXAMPLE ONLY, information on label varies by FAMILY).

PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)

The 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual.

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